What is the coefficient 'a' in the parabola function y = ax^2 if the vertex is (-3, 4) and the point (2, -5) lies on the parabola? (Hint: Use the vertex form y = a(x - h)^2 + k)
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What is the equation of a circle centered at (-3, 2) with a radius of 5?
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Math question: Find the limit as x approaches 3 of (2x + 5)/(x - 3) using limit laws. Explain step-by-step.